Hybrid laser for optical communications, and transmitter, system

Coherent light generators – Particular active media – Semiconductor

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372 36, 372 50, 372 96, 372 99, 357 81, H01S 319

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active

049146670

ABSTRACT:
In the interest of ease of manufacture, hybrid lasers of distributed-Bragg-reflector type are preferred for use as light sources in optical communications. Such lasers are made to operate away from mode instabilities by adjusting a laser parameter such as, e.g., laser temperature, thereby assuring highly error-free transmission. Alternatively, by suitable design of the Bragg reflector it is possible to render mode instability of negligible influence on error rate.

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patent: 4658403 (1987-04-01), Takiguchi et al.
"GaInAsP/InP Integrated Laser with Butt-jointed Built-in Distributed-Bragg-reflection Waveguide", Electronics Letters, vol. 17, 1981, pp. 945-947, by Y. Abe et al.
"Single-wavelength Operation of the Hybrid-external Bragg-reflector-waveguide Laser Under Dynamic Conditions", Applied Physics Letters, vol. 47, 1985, pp. 183-185, by J. M. Hammer et al.
"Channelled-substrate Buried-heterostructure InGaAsP/InP Laser with Semi-Insulating OMVPE Base Structure and LPE Regrowth", Electronics Letters, vol. 22, pp. 869-870, by D. P. Wilt et al.

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